Which type of PFD is characterized as special-use devices?

Type V personal flotation devices (PFDs) are designed as special-use devices tailored for specific activities, such as kayaking, water skiing, and other recreational water sports. They are often used in scenarios where traditional PFD types may not provide the necessary support or functionality for the activity at hand.

These devices go beyond the basic buoyancy provided by standard PFDs; they might include additional features such as harnesses, built-in flotation aids, or even tailored fit for unique activities. This versatility makes Type V PFDs particularly suitable for specialized users who require additional safety features tailored to their specific conditions.

In contrast, Type I, Type III, and Type IV PFDs serve more general purposes or situations. Type I PFDs are intended for offshore use and provide the most buoyancy. Type III PFDs are more comfortable and suitable for regular activity but are not designed for specific specialized use. Type IV PFDs are throwable devices rather than wearable. Each of these options has its specific applications but does not carry the same specialized intent as Type V.